Dear Damion, and others,
well. There is certainly news. Not so much on adaptive quiz, but we have received project funding for the project on adaptive quiz.
The adaptive quiz project which I am heading, is aiming to develop the necessary plugins to use a quiz to drive in-class discussion in mathematics. We find some ideas in ActiveQuiz, but need to adapt it to allow improvised questions (like the quick questions in scorative.com). Stack seems to provide much of what we need to support mathematical questions, but we will try to add functionality to filter a set of student responses down to a set of semantically unique answers. I don't know how difficult this is going to be, so we'll see.
The other project, on adaptive quiz, which is headed by my colleague. In spite of funding, this is still in the state that it was six months ago, for lack of the right people. I had a look at his system the other day, and from the student perspective it looked surprisingly user friendly and effective. I have not seen the teacher's interface though. What I hope is that there is enough synergy between the two projects to port the adaptive quiz into Moodle as part of the other project, but at this stage that's a hope and not a plan.
The core idea in adaptive quiz is to use the rating system of chess. Students and questions are both seen as players with ratings, and students meet questions of similar rating, and the rating changes depending on the result (correct/incorrect) and the previous ratings.
I shall be very happy to discuss either project with anyone who takes an interest. Here or by email. Contact details on the project site (not much else there yet): http://confluence.uials.no:8090/display/KQMATHPUB/Klasseromsquiz+i+Matematikk